Thread guide holder for textile machines



Jan. 15, 1952 w. HOFFMANN THREAD GUIDE HOLDER FOR TEXTILE MACHINES Filed Feb. 10, 1949 .INVENTOR W 0 Patented Jan. 15, 1952 THREAD GUIDE HOLDER. FOR TEXTILE MACHINES Walter Hoifmann, Zurich, Switzerland, assignor to Actiengesellschaft Joh. Ja'cob Rieter & Cie.,

Winterthur, Switzerland Application February 10, 1949, Serial No. 75,691

" In Switzerland August 20, 1948 2 Claims. (Cl. 57109) Roving and thread guide holders for spinning and twisting machines of the continuous type, which are hingedly connected to their support, are known in the art, one part of such hinge being screwed to the support and the other to the holder. A constructionalso is known in which a slewing-element provided with the thread guide is hingedly connected to a rear wall which maintains the said element in operative position and which is adapted to be screwed to the support. In both these constructions, therefore, an additional pair of hinges is used, in order to render the spindles readily accessible by swinging the slewing-element out of the operative position, for example when doifmg a cop.

The holder according to the present invention is substantially simplified in that it is directly pivoted on its support which thus serves as pivot.

The holder suitably comprises a bearing face which is adapted to the cross-sectional shape of the support and provided with a slot in which is fitted a guide element secured to the said support.

The additional pair of hinges thus is dispensed with, and the arrangement is rendered more simple. The holder, therefore, may be made stronger so that it will not break as readily as the holders used heretofore.

One form of the present invention is schematically shown, by way of example, in the drawing, in which:

Fig. 1 shows a side view, partly in section,

Fig. 2 shows, in a larger scale, a section through the support and the adjoining portion of the lappet, taken at right angles to the plane of Fig. 1, and

Fig. 3 is a cross-section of a modified support.

The holder I comprises at its free front end the thread guide 2, and at its rear end a rear wall 3. The said rear wall is curved to fit the cylindrical support 4 which in the present case is a tube. The rear wall is slotted at 5 for receiving a guide member 6 which is fixed to the support 18 by means of a screw I. The said guide member through its end-portions 8 abuts against the sidewalls 9 of the holder I, which sidewalls are integral with the rear wall 3. The holder I, thus, is properly located in a lateral sense.

When full cops have to be dofied and new bobbins put on the machine, the holder I is swung upward on the support 4 so that the operator will not be hindered in his or her work. The holder I is rotated on its support 4 until the bail III integral with the rear wall 3 abuts against the guide member 6, in which position the holder I is rearwardly inclined on its support 4, while the guide member 6 remains in its setting with respect to the support 4 and its end-portions or wings 8 prevent the holder I from dropping of! its support 4. In the case when all the holders mounted on one and the same support 4 have to 2 be swung upward, the latter is rotated clockwise as viewed in Fig. 1 so as to take the holders along.

The support 4' is suitably longitudinally grooved at I I, as shown in Fig. 3, for the purpose of inserting guide members, not shown, but which may be similar to guide member 6 of Figs. 1 and 2, of the holders and bringing all the latter into alignment.

What I claim as new and desire to secure by Letters Patent is:

1. A thread guide mechanism for spinning and twisting machines comprising an elongated support of approximately circular cross-sectional shape, a thread guide holder movably mounted on said support, a thread guide connected to said holder, said holder having a substantially semicircular cylindrical base portion conforming to the shape of the support and embracing said support only in part, said base portion being provided with a slot extending circumferentially of said support, and holding means secured to the support within said slot, said holding means overlapping portions of the base portion bounding said slot therein and being adapted to hold the thread guide holder in axially adjustable relationship with the support and to limit movement of the holder relatively to the support to upper and lower operative positions.

2. A thread guide mechanism for spinning and twisting machines comprising an elongated support of approximately circular cross-sectional shape, a thread guide holder movably mounted on said support, a thread guide connected to said holder, saidholder having a substantially semicircular cylindrical base portion conforming to the shape ofthe support and embracing said support only in part, and having spaced side walls extending from said base portion, said base portion being provided with a slot extending circumferentially of said support, and a guide member engaged in said slot and having wings overlapping said base portion in proximity to the slot therein, the ends of said wings engaging said spaced side walls of the thread guide holder for guiding the holder when this latter is moved on the support into upper and lower operative positions.

WALTER HOFFMANN.

REFERENCES CITED The following references are of record in the file of this patent:

v UNITED STATES PATENTS Number Name Date 184,816 Allen Nov. 28, 1876 951,310 Forget Mar. 8, 1910 FOREIGN PATENTS Number Country Date 401,342 Germany Sept. 5, 192% 

